The AS Roma player had indicated that he was set to begin training with the Blues squad from today and that has now been confirmed by Blues.
Sartor joined in with the rest of the first team squad during their training session at Wast Hills on Thursday morning.
"We have invited Luigi over and he trained for the first time with us on Thursday," said Bruce.
"Whether something will or won't happen depends on how well he does with us here in training and in game situations."
The Blues boss has also confirmed that young Finnish midfielder Alexi Eremenko is to begin a trial at the club next week.
